Hi, Cyndi —
Thanks for the question.
Within the past few months we have added a new FAQ feature to the site. It contains the most frequently asked questions over the past fifteen years we have been answering questions.
Your question is one of those. Just click on the FAQ link above and you will see an array of postings that answer this question under Privileges of Mary . . . tab — the fourth paragraph down the page: Mary, Ever Virgin section.
I suggestion you bookmark the FAQ feature page for future referencing.
That section includes these postings that address your question.
As a brother Christian I want to welcome your research and reviewing of what we believe as Catholic Christians. My colleague John also addresses this issue in this posting:
I used to run a free program that sent Catechisms to seeking Protestants and non-Christians but no longer have the financial or operational means to do this anymore. Nevertheless, if you wish to go deeper, consider buying a cheap copy of the Catechism of the Catholic Church to learn everything we believe as Catholics.
If you, or any visitor, has been helped by our work at AskACatholic.com, consider financially supporting us today. If you can't right now, check out our Click To Support program.